Princess Cecilie of Greece and Denmark

Princess Cecilie of Greece and Denmark (Greek: Καικιλία, romanized: Kaikilía; 22 June 1911 – 16 November 1937) was by birth a Greek and Danish princess who became titular Hereditary Grand Duchess of Hesse and by Rhine through her marriage to Prince Georg Donatus, pretender to the throne of the Grand Duchy of Hesse. She was also the third-eldest sister to Prince Philip of Greece and Denmark (later Duke of Edinburgh).

The third of five children of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg, Cecilie had a happy childhood. In her early years, however, she witnessed the Balkan Wars (1912–1913), followed by the First World War (1914–1918) and the Greco-Turkish War (1919–1922). For the young princess and her relatives, these conflicts had dramatic consequences and led to their exile in Switzerland (between 1917 and 1920), and then in France (from 1922 to 1936). During their exile, Cecilie and her family depended on the generosity of their foreign relatives, in particular Marie Bonaparte (who offered them accommodation in Saint-Cloud) and Lady Louis Mountbatten (who supported them financially).